package lianxi.di5zhang;

public class example11 {
    public static void main(String[] args) {
        long startTime = System.currentTimeMillis();
        int sum = 0;
        for (int i = 0; i< 1000000000; i++){
            sum += i;
        }
        long endTime = System.currentTimeMillis();
        System.out.println("程序运行的时间为:" +(endTime-startTime) + "毫秒");
    }
}
